Note 9 - Debt (Details Textual) - USD ($)	3 Months Ended
Mar. 31, 2024	Dec. 31, 2023
Machinery at Sypris Technologies Facility [Member]
Finance Lease, Liability	$ 3,051,000
Machinery at Sypris Technologies Facility [Member] \| Finance Lease Obligations [Member]
Debt, Weighted Average Interest Rate	8.80%
Promissory Notes with Maturity on April 1, 2021 and April 1, 2023 [Member] \| Gill Family Capital Management [Member]
Subordinated Debt, Ending Balance	$ 9,000,000	$ 6,500,000
Debt Instrument, Interest Rate, Stated Percentage	9.56%
Promissory Notes with Maturity on April 1, 2021 and April 1, 2023 [Member] \| Gill Family Capital Management [Member] \| Minimum [Member]
Debt Instrument, Interest Rate, Stated Percentage	8.00%
Promissory Note [Member] \| Gill Family Capital Management [Member] \| Minimum [Member] \| Five-year Treasury Note Average During Preceding 90-day Period [Member]
Debt Instrument, Basis Spread on Variable Rate	5.00%
Promissory Notes With Maturity On April 1, 2024 And April 1, 2026 [Member] \| Gill Family Capital Management [Member]
Debt Instrument, Maximum Allowance of Interest Due on Deferred Payments, Percent	60.00%
Debt Instrument, Increase (Decrease), Net	$ 2,500,000
Equipment Financing Obligations [Member]
Finance Lease, Liability	1,788,000
Long-Term Debt	$ 1,788,000
Debt Instrument, Interest Rate, Effective Percentage	6.80%

The percentage of maximum allowance of the interest due on deferral of payments.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Net increase or decrease in the carrying amount of the debt instrument for the period.

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Weighted average interest rate of debt outstanding.

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Present value of lessee's discounted obligation for lease payments from finance lease.

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Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of subordinated debt (with initial maturities beyond one year or beyond the operating cycle if longer). Subordinated debt places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets.

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